US Bridges

N13-E24 Connector over Broadway

Fair

Alameda County, California · 04-ALA-013-R9.57-OAK · Structure no. 33 0377G

Built
1970
55 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
241 ft
3 main spans
Daily traffic
40,000
2019 count
Owner
State
State Highway Agency

About this bridge

N13-E24 Connector over Broadway is a concrete continuous box beam or girders - multiple carrying N13-E24 Connector over Broadway in Alameda County, California. It was built in 1970, so it is 55 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 40,000 vehicles a day, roughly 1% of them trucks, projected to reach 59,655 by 2043. The structure is 241 ft (73.5 m) long and 28 ft wide. If it were closed, the detour would be 55.3 mi (89 km).

Location

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CarriesN13-E24 Connector
CrossesBroadway
Location04-ALA-013-R9.57-OAK
RouteState Highway 13
CountyAlameda County
StateCalifornia
Coordinates37.84785, -122.22694
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating40 US tons
Inventory rating31.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length241 ft (73.5 m)
Longest span108 ft (32.9 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,000 (2019)
Projected traffic59,655 by 2043
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed55.3 mi (89 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was N13-E24 Connector over Broadway built?

It was built in 1970, making it 55 years old in 2025.

What condition is N13-E24 Connector over Broadway in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does N13-E24 Connector over Broadway carry?

About 40,000 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is N13-E24 Connector over Broadway?

The structure is 241 ft (73.5 m) long with a longest span of 108 ft (32.9 m) and a deck 28 ft wide.

Who owns N13-E24 Connector over Broadway?

It is owned by the State Highway Agency.